function openWindow(url, w, h) {
  var options = "width=" + w + ",height=" + h + ",";
  options += "resizable=no,scrollbars=no,status=yes,";
  options += "menubar=no,toolbar=no,location=no,directories=no";
  var newWin = window.open(url, 'newWin', options);
  newWin.focus();
}